diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f3767469..fd95d7f8 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -32,7 +32,7 @@ build_meson:
   script:
     - mv debian/control-newer debian/control
     - apt-get -y build-dep .
-    - meson . _build/ -Ddepdatadir=/usr/share --werror
+    - meson . _build/ -Ddepdatadir=/usr/share -Dfind_orphans=true --werror
     - ninja -C _build install
   except:
     variables:
diff --git a/Cargo.toml.in b/Cargo.toml.in
index 5667197a..b69e0df9 100644
--- a/Cargo.toml.in
+++ b/Cargo.toml.in
@@ -16,6 +16,10 @@ path = "@path@/src/bin/test_layout.rs"
 name = "test_layout"
 path = "@path@/examples/test_layout.rs"
 
+[[example]]
+name = "find_orphan_layouts"
+path = "@path@/examples/find_orphan_layouts.rs"
+
 [features]
 glib_v0_14 = []
 
diff --git a/examples/find_orphan_layouts.rs b/examples/find_orphan_layouts.rs
new file mode 100644
index 00000000..ba036b22
--- /dev/null
+++ b/examples/find_orphan_layouts.rs
@@ -0,0 +1,53 @@
+/*! Tests if any layout files are not in use */
+
+extern crate rs;
+
+use rs::resources;
+use std::env;
+use std::error::Error;
+use std::ffi::OsStr;
+use std::fs;
+use std::path::{Path, PathBuf};
+
+enum Orphans {
+    None,
+    Present,
+}
+
+fn check(base: &Path, dir: &Path) -> Result<Orphans, Box<dyn Error>> {
+    let mut orphans = Orphans::None;
+    for entry in fs::read_dir(dir)? {
+        let entry = entry?;
+        let path = entry.path();
+
+        if entry.file_type()?.is_dir() {
+            check(base, &path)?;
+        } else {
+            if Some(OsStr::new("yaml")) == path.extension() {
+                let resource_path = path
+                    .strip_prefix(base).unwrap()
+                    .with_extension("");
+                let resource_path = resource_path
+                    .to_str().unwrap();
+                let resource_path = resource_path
+                    .strip_prefix('/').unwrap_or(resource_path);
+                if let None = resources::get_keyboard(resource_path) {
+                    println!("Data not registered in the resources file: {:?}", path);
+                    orphans = Orphans::Present;
+                }
+            }
+        }
+    }
+    Ok(orphans)
+}
+
+fn main() -> () {
+    let path = env::args().nth(1).expect("Provide a path");
+    let path = PathBuf::from(path);
+
+    match check(&path, &path) {
+        Err(e) => panic!("{:?}", e),
+        Ok(Orphans::Present) => panic!("Unregistered files present. Check the tutorial in doc/tutorial.md"),
+        _ => {},
+    }
+}
diff --git a/meson_options.txt b/meson_options.txt
index 294340fd..1de4874d 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -7,6 +7,10 @@ option('tests',
        type: 'boolean', value: true,
        description: 'Whether to compile unit tests')
 
+option('find_orphans',
+       type: 'boolean', value: false,
+       description: 'Check if all present layout files are included in resources.')
+
 option('newer',
        type: 'boolean', value: false,
        description: 'Build with dependencies newer than those of Byzantium')
diff --git a/src/lib.rs b/src/lib.rs
index d508d051..f1e70c69 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -39,7 +39,7 @@ mod outputs;
 mod panel;
 mod popover;
 mod receiver;
-mod resources;
+pub mod resources;
 mod state;
 mod style;
 mod submission;
diff --git a/tests/meson.build b/tests/meson.build
index ae726442..51da1d7c 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -127,3 +127,14 @@ foreach layout : [
 endforeach
 
 endif
+
+if get_option('find_orphans')
+    test('test_find_orphans',
+        cargo_script,
+        args: ['run'] + cargo_build_flags
+            + ['--example', 'find_orphan_layouts',
+                '--', meson.source_root() + '/data/keyboards/'],
+        timeout: timeout,
+        workdir: meson.build_root(),
+    )
+endif
\ No newline at end of file